Revision as of 16:54, 20 February 2021

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Core i7-8700K
General Info
Designer	Intel
Manufacturer	Intel
Model Number	i7-8700K
Part Number	BX80684I78700K, BXC80684I78700K, CM8068403358220
S-Spec	SR3QR QNMK (QS)
Market	Desktop
Introduction	September 24, 2017 (announced) October 5, 2017 (launched)
Release Price	$359
Shop	Amazon
General Specs
Family	Core i7
Series	i7-8000
Locked	No
Frequency	3,700 MHz
Turbo Frequency	4,700 MHz (1 core), 4,600 MHz (2 cores), 4,500 MHz (3 cores), 4,400 MHz (4 cores), 4,400 MHz (5 cores), 4,300 MHz (6 cores)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Clock multiplier	37
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Coffee Lake
Platform	Coffee Lake
Chipset	300 series
Core Name	Coffee Lake S
Core Family	6
Core Model	158
Core Stepping	U0
Process	14 nm
Technology	CMOS
Die	149 mm²
Word Size	64 bit
Cores	6
Threads	12
Max Memory	128 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	95 W
Tjunction	0 °C – 100 °C
Tstorage	-25 °C – 125 °C
Packaging
Package FCLGA-1151 (LGA) FC-LGA14C Dimension 37.5 mm x 37.5 mm x 4.4 mm Pitch 0.914 mm Contacts 1151 Socket LGA-1151

Core i7-8700K is a 64-bit hexa-core high-end performance x86 desktop microprocessor introduced by Intel in 2017. This processor, which is based on the Coffee Lake microarchitecture, is manufactured on Intel's 3rd generation enhanced 14nm++ process. The i7-8700K operates at a 3.7 GHz with a TDP of 95 W and a Turbo Boost frequency of up to 4.7 GHz. This chip supports up to 128 GiB of dual-channel DDR4-2666 memory and incorporates Intel's UHD Graphics 630 IGP operating at 350 MHz with a burst frequency of 1.2 GHz.

The Core i7-8700K is Intel's flagship mainstream processor based on Coffee Lake, succeeding the Core i7-7700K.

Cache

Main article: Coffee Lake § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 384 KiB 393,216 B 0.375 MiB L1I$ 192 KiB 196,608 B 0.188 MiB 6x32 KiB 8-way set associative   L1D$ 192 KiB 196,608 B 0.188 MiB 6x32 KiB 8-way set associative write-back L2$ 1.5 MiB 1,536 KiB 1,572,864 B 0.00146 GiB     6x256 KiB 4-way set associative write-back L3$ 12 MiB 12,288 KiB 12,582,912 B 0.0117 GiB     6x2 MiB 16-way set associative write-back

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2666 Supports ECC No Max Mem 128 GiB Controllers 1 Channels 2 Max Bandwidth 39.74 GiB/s 40,693.76 MiB/s 42.671 GB/s 42,670.5 MB/s 0.0388 TiB/s 0.0427 TB/s Bandwidth Single 19.87 GiB/s Double 39.74 GiB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 3.0 Max Lanes: 16 Configuration: 1x16, 2x8, 1x8+2x4

Graphics

[Edit/Modify IGP Info]

Integrated Graphics Information

GPU UHD Graphics 630 Designer Intel Device ID 0x3E92 Execution Units 24 Max Displays 3 Max Memory 128 GiB 131,072 MiB 134,217,728 KiB 137,438,953,472 B Frequency 350 MHz 0.35 GHz 350,000 KHz Burst Frequency 1,200 MHz 1.2 GHz 1,200,000 KHz Output DP, eDP, HDMI, DVI Max Resolution HDMI 4096x2304 @24 Hz DP 4096x2304 @60 Hz eDP 4096x2304 @60 Hz Standards DirectX 12 OpenGL 4.5 OpenCL 2.0 DP 1.2 eDP 1.4 HDMI 1.4a Additional Features Intel Quick Sync Video Intel InTru 3D Intel Clear Video Intel Clear Video HD

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 2.0 Turbo Boost Technology 2.0 EIST Enhanced SpeedStep Technology TXT Trusted Execution Technology (SMX) vPro Intel vPro VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT) TSX Transactional Synchronization Extensions MPX Memory Protection Extensions SGX Software Guard Extensions Secure Key Secure Key Technology SMEP OS Guard Technology SIPP Stable Image Platform Program IPT Identity Protection Technology

Overclockability

The i7-8700K is a highly overclockable chip. Below are the overclocking statistics for delidded i7-8700K parts as reported by Silicon Lottery, a company that sells those delidded parts with various overclocking performance guarantees:

Frequencies

See also: Intel's CPU Frequency Behavior

Die

See also: Coffee Lake § Die

A die shot of Intel's Coffee Lake Hexa Core desktop processors: